US Bridges

Nj 57 over Br Musconetcong River

Fair

Warren County, New Jersey · 2.9 MI East of Rt 31 JCT · Structure no. 2106156

Built
1924
101 years old, rebuilt 2013
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
12,918
2024 count
Owner
State
State Highway Agency

About this bridge

Nj 57 over Br Musconetcong River is a prestressed concrete box beam or girders - multiple carrying Nj 57 over Br Musconetcong River in Warren County, New Jersey. It was built in 1924 and reconstructed in 2013, so it is 101 years old, older than the New Jersey average of 58.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 12,918 vehicles a day, roughly 4% of them trucks, projected to reach 19,195 by 2044. The structure is 28 ft (8.5 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNj 57
CrossesBr Musconetcong River
Location2.9 MI East of Rt 31 JCT
RouteState Highway 57
CountyWarren County
StateNew Jersey
Coordinates40.76992, -74.9218
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.8 US tons
Inventory rating62.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length28 ft (8.5 m)
Longest span24 ft (7.3 m)
Deck width34 ft (10.4 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,918 (2024)
Projected traffic19,195 by 2044
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$9,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nj 57 over Br Musconetcong River built?

It was built in 1924, making it 101 years old in 2025. It was reconstructed in 2013.

What condition is Nj 57 over Br Musconetcong River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does Nj 57 over Br Musconetcong River carry?

About 12,918 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Nj 57 over Br Musconetcong River?

The structure is 28 ft (8.5 m) long with a longest span of 24 ft (7.3 m) and a deck 34 ft wide.

Who owns Nj 57 over Br Musconetcong River?

It is owned by the State Highway Agency.